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CVE-2024-40984— ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine."

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 ACPICA 组件在处理内存映射时存在空指针取消引用问题。

CVSS 7.8 · High EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1200.001

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux d410ee5109a1633a686a5663c6743a92e1181f9b< 435ecc978c3d5d0c4e172ec5b956dc1904061d98 affected
d410ee5109a1633a686a5663c6743a92e1181f9b< ae465109d82f4fb03c5adbe85f2d6a6a3d59124c affected
d410ee5109a1633a686a5663c6743a92e1181f9b< 6eca23100e9030725f69c1babacd58803f29ec8d affected
d410ee5109a1633a686a5663c6743a92e1181f9b< dc5017c57f5eee80020c73ff8b67ba7f9fd08b1f affected
d410ee5109a1633a686a5663c6743a92e1181f9b< ddc1f5f124479360a1fd43f73be950781d172239 affected
d410ee5109a1633a686a5663c6743a92e1181f9b< 434c6b924e1f4c219aab2d9e05fe79c5364e37d3 affected
d410ee5109a1633a686a5663c6743a92e1181f9b< e21a4c9129c72fa54dd00f5ebf71219b41d43c04 affected
d410ee5109a1633a686a5663c6743a92e1181f9b< a83e1385b780d41307433ddbc86e3c528db031f0 affected
… +10 more rows
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I. Basic Information for CVE-2024-40984

Vulnerability Information
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Vulnerability Title
ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine."
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." Undo the modifications made in commit d410ee5109a1 ("ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine.""). The initial purpose of this commit was to stop memory mappings for operation regions from overlapping page boundaries, as it can trigger warnings if different page attributes are present. However, it was found that when this situation arises, mapping continues until the boundary's end, but there is still an attempt to read/write the entire length of the map, leading to a NULL pointer deference. For example, if a four-byte mapping request is made but only one byte is mapped because it hits the current page boundary's end, a four-byte read/write attempt is still made, resulting in a NULL pointer deference. Instead, map the entire length, as the ACPI specification does not mandate that it must be within the same page boundary. It is permissible for it to be mapped across different regions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 ACPICA 组件在处理内存映射时存在空指针取消引用问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d410ee5109a1633a686a5663c6743a92e1181f9b ~ 435ecc978c3d5d0c4e172ec5b956dc1904061d98 -
Linux Linux 2.6.32 -

II. Public POCs for CVE-2024-40984

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III. Intelligence Information for CVE-2024-40984

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Other References for CVE-2024-40984 (8)

Same Patch Batch · Linux · 2024-07-12 · 122 CVEs total

CVE-2024-40937 9.8 CRITICAL gve: Clear napi->skb before dev_kfree_skb_any()
CVE-2024-40983 9.8 CRITICAL tipc: force a dst refcount before doing decryption
CVE-2024-40923 9.8 CRITICAL vmxnet3: disable rx data ring on dma allocation failure
CVE-2024-40907 9.8 CRITICAL ionic: fix kernel panic in XDP_TX action
CVE-2024-40999 9.8 CRITICAL net: ena: Add validation for completion descriptors consistency
CVE-2024-40910 8.8 HIGH ax25: Fix refcount imbalance on inbound connections
CVE-2024-40911 8.8 HIGH wifi: cfg80211: Lock wiphy in cfg80211_get_station
CVE-2024-40941 8.1 HIGH wifi: iwlwifi: mvm: don't read past the mfuart notifcation
CVE-2024-40953 7.9 HIGH KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()
CVE-2024-39496 7.8 HIGH btrfs: zoned: fix use-after-free due to race with dev replace
CVE-2024-40949 7.8 HIGH mm: shmem: fix getting incorrect lruvec when replacing a shmem folio
CVE-2024-40991 7.8 HIGH dmaengine: ti: k3-udma-glue: Fix of_k3_udma_glue_parse_chn_by_id()
CVE-2024-39502 7.8 HIGH ionic: fix use after netif_napi_del()
CVE-2024-40989 7.8 HIGH KVM: arm64: Disassociate vcpus from redistributor region on teardown
CVE-2024-40947 7.8 HIGH ima: Avoid blocking in RCU read-side critical section
CVE-2024-40918 7.8 HIGH parisc: Try to fix random segmentation faults in package builds
CVE-2024-40986 7.8 HIGH dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()
CVE-2024-40970 7.8 HIGH Avoid hw_desc array overrun in dw-axi-dmac
CVE-2024-40979 7.8 HIGH wifi: ath12k: fix kernel crash during resume
CVE-2024-40974 7.8 HIGH powerpc/pseries: Enforce hcall result buffer validity and size

Showing top 20 of 122 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-40984

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